Zone(s) are three dimensional areas of the world that are considered large enough that any characters within are all considered to be in Immediate range of each other and have a chance to make physical contact during one round (about 6 seconds). Zones are about half the size of a boxing ring (about 3m by 3m) but could be larger or smaller, depending on the size class of the occupants.
Zones are typically connected together, and are considered to be in Close range of each other. Some scenes will call for zones to have traits like “narrow” or “icy” which affect how movement and actions are managed for characters within.